CN105465588A - Oil drain valve - Google Patents
Oil drain valve Download PDFInfo
- Publication number
- CN105465588A CN105465588A CN201610022916.6A CN201610022916A CN105465588A CN 105465588 A CN105465588 A CN 105465588A CN 201610022916 A CN201610022916 A CN 201610022916A CN 105465588 A CN105465588 A CN 105465588A
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- Prior art keywords
- section
- oil
- seal
- spring
- active section
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- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 claims description 104
- 239000000446 fuel Substances 0.000 claims description 35
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000010687 lubricating oil Substances 0.000 description 53
- 238000005070 sampling Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- -1 opened by plug screw Substances 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/08—Aircraft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2280/00—Valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an oil drain valve, comprising an oil drain blocking assembly, a valve seat assembly, a spring seat assembly, a spring and a footstock, wherein the oil drain blocking assembly comprises a rotary handle, a rotary section, a limiting section, a first working section, a second working section, a third working section and a spring convex seat; the valve seat assembly comprises a limiting chamber, a first sealing chamber, a bypass chamber, a second sealing chamber, a spring chamber and a deformation edge; the spring seat assembly comprises a concave seat and a spring mounting seat; the spring chamber of the valve seat assembly is internally provided with the spring seat assembly, the spring and the footstock in sequence from left to right; the oil drain blocking assembly is inserted into the valve seat assembly; and due to scientific design of the structure, the oil drain blocking assembly and the valve seat assembly form rotatable movably connection. The oil drain is simple in integral structure design, high in integration level and convenient to maintain.
Description
Technical field
The present invention relates to aero engine technology field, more specifically, relate to a kind of aeroengine fuel outlet valve.
Background technique
The lubricating oil jettison gear used in aeroengine is at present divided into two kinds: a kind of structure being plug screw and coordinating with screw, and when needing discharge lubricating oil, opened by plug screw, lubricating oil freely flows down from screw, reaches the object of discharge lubricating oil.Adopt the oil tank of this structure when carrying out lubricating oil sampling, general use instrument draws lubricating oil in lubricating oil lid position.
The structure that existing plug screw and tapped hole coordinate has the following disadvantages: (1) when lubricating oil discharge because oil pressure can produce jet, so need motor to dismantle, otherwise, pollution can be produced to airframe.Because dismounting motor needs main equipment, so this discharging modes are difficult in outfield carry out; Secondly, have high temperature lubricating oil jet during heat engine discharge lubricating oil, have certain potential safety hazard to operator.(2) lubricating oil sampling is extracted at lubricating oil case lid place, can produce on the one hand pollute the lubricating oil in oil tank; On the other hand, due to the restriction of accessory drive gearbox interior shape, flexible pipe is also difficult to insert lubricating oil after being entered by thick filtering net inner, operates more difficult; In addition, because this sampling mode is easy to make operator touch high temperature lubricating oil, so this structure cannot carry out the sampling of heat engine lubricating oil.
The second is the fuel outlet valve of push rod structure, and when needing discharge lubricating oil, compress push rod, lubricating oil flows down along fuel outlet, reaches the object of lubricating oil discharge.When carrying out lubricating oil sampling, below floss hole, placing container can complete lubricating oil sampling.
Adopt second method can there is following deficiency: (1) installing space is large: the fuel outlet valve size of push rod structure is larger, so aircraft needs, for its reserved larger installing space, to cause waste to aircraft space.(2) safeguard that space requirement is large: when motor carries out lubricating oil discharge or lubricating oil sampling in aircraft installation state, need placing container below fuel outlet valve, this needs aircraft to reserve enough spaces.(3) safeguard that labor intensity is large: when lubricating oil discharge or lubricating oil sampling, attendant needs long by push rod, increases labor intensity, brings very large inconvenience to maintenance.(4) Security is low: lubricating oil discharge and sampling do not have pipeline to guide, and this makes likely to cause hot lubricating oil to contact with the direct of attendant when heat engine is safeguarded, so safety of structure is lower.
Summary of the invention
The present invention is intended to improve the online lubricating oil sampling of aeroengine and discharge efficiency, and the pollution reducing the online lubricating oil sampling of motor and change aircraft, reduces labor intensity, simplify operation, reduce costs, thus provide a kind of aeroengine fuel outlet valve.The present invention is equally applicable to ground combustion machine and other airborne subsidiary oil tank equipment.
The present invention in order to the technological scheme solving prior art problem and adopt as follows:
1. a kind of fuel outlet valve is provided, comprises plug assembly of draining the oil, valve base assembly, spring seat assembly, spring and footstock;
Described plug assembly of draining the oil comprise set gradually be columniform rotatable handle, rotate section, the first active section, the first seal section, the second active section, the second seal section, the 3rd active section and spring convex seat; Described rotation section at least has " J " shape mounting groove; Described second active section is at least provided with a drain oil; Described 3rd active section at least has one with the groove of draining the oil of the 3rd active section parallel to an axis; The center of described rotatable handle has transform interface; Described plug assembly of draining the oil is provided with blocking center flow channels along axle center, and described blocking center flow channels is that one end is closed, the hole of the other end opening, and described blocking center flow channels, near the one end open of rotatable handle, is closed near one end of spring convex seat; Described drain oil communicates with blocking center flow channels;
Described " J " shape mounting groove comprises circular trough and curve orientation groove, and circular trough and curve orientation groove communicate, circular trough and curve orientation groove circular sliding slopes, circular trough than the joint of circular trough and curve orientation groove closer to the first active section;
The skin of described first seal section is the first seal ring, the skin of described second seal section is the second seal ring, the external diameter of described rotatable handle is greater than the external diameter of described rotation section, the external diameter of described first active section, the first seal section, the second active section, the second seal section and the 3rd active section is equal, and the external diameter of described spring convex seat is less than the external diameter of described 3rd active section;
Have cavity in described valve base assembly, described cavity comprise set gradually be columniform limit chamber, the first Seal cage, bypass cavity, the second Seal cage and spring chamber, the end of spring chamber connects distortion limit; The inwall of described limit chamber is provided with bayonet lock, and the internal diameter of described limit chamber equals the external diameter of described rotation section; The internal diameter of described first Seal cage and the second Seal cage equals the external diameter of described first active section; The internal diameter of described bypass cavity is greater than the external diameter of described first active section; The internal diameter of described spring chamber is greater than the external diameter of the first active section; The outer wall of described spring chamber at least has a groove, and the periphery of described valve base assembly is provided with flange plate, and described flange plate is provided with fixed hole; Described distortion limit is thin slice, and described distortion limit can turn down inside valve base assembly;
Described spring seat assembly comprises concave base and spring mounting seat, and described concave base is embedded in spring mounting seat, and described concave base has groove, described groove and described spring convex seat suitable, described spring housing is connected on spring convex seat outer surface;
Described footstock is installed in described spring chamber near described distortion limit, and the maximum outside diameter of footstock equals the internal diameter of described spring chamber; Described plug assembly of draining the oil is inserted in valve base assembly, and both form rotatable movable connection, and the external diameter of described bayonet lock is less than or equal to the internal diameter of described mounting groove;
The length of described first Seal cage is greater than the length of described first active section, and the length sum of described first seal section and the second active section is more than or equal to the length of described bypass cavity; When described bayonet lock is placed in described circular trough, the first active section is in the first Seal cage, and the first seal section and the second active section are in bypass cavity, and the second seal section is in the second Seal cage; Described plug assembly of draining the oil moves and the first seal section can be made to be in the first Seal cage, and the second seal section is in bypass cavity;
Described first active section, the first seal section, the second active section, the second seal section, the 3rd active section and spring convex seat and footstock are all installed in described valve base assembly, and described rotation section is some or all of to be installed in described valve base assembly.
Further, described curve orientation groove leads to the end face of described rotation section, and this end face is the end face near described first active section.Curve orientation groove leads to and rotates the end face of section, and when the assembling of carry out draining the oil plug assembly and valve base assembly, bayonet lock runs into curve orientation groove, rotates plug assembly of draining the oil, bayonet lock can be screwed in curve orientation groove.
Further, the outer surface of described rotatable handle is provided with screw thread.Screw thread is set, is convenient to rotate.
Further, also comprise position limit pin, be provided with spacing section between described rotation section and the first active section, the external diameter that the external diameter of described rotation section is greater than described spacing section, the external diameter of described spacing section is less than the external diameter of described first active section; The outer wall of described limit chamber is provided with spacing hole, and described spacing hole is through hole, spacing hole relative to bayonet lock closer to described first Seal cage; The external diameter of described position limit pin is less than or equal to the internal diameter of described spacing hole; When described plug assembly of draining the oil moves and position limit pin is contacted with the first active section, the first seal section is in the first Seal cage, and the second seal section is in bypass cavity.
Further, described rotation section is evenly provided with three mounting grooves, and described three mounting grooves are on same circumferential position.
Further, described second active section is evenly provided with three drain oils, described three drain oils are on same circumferential position.
Further, described 3rd active section is evenly provided with three drain the oil grooves isometric with the 3rd active section.
Further, described seal ring is cushion rubber.
Further, the outer wall of described spring chamber evenly has three grooves.
Further, also comprise adapter of draining the oil, described in adapter of draining the oil be communicated with described transform interface.
Further, described adapter of draining the oil comprises adapter coupling, transfer tube, switching nut, described adapter coupling one end is provided with plug of draining the oil, the other end is connected with transfer tube by switching nut, described plug of draining the oil is provided with cushion rubber, described plug and the described transform interface transition fit of draining the oil, the center of described adapter coupling, transfer tube, switching nut is equipped with the oil drain canal of concentric.The cushion rubber external diameter of adapter coupling is greater than transform interface internal diameter, and after insertion, cushion rubber can be compressed, and cushion rubber expands and adapter coupling is fixed on rotatable handle.
Further, described in adapter of draining the oil be provided with bridle line, one end of described bridle line connects described position limit pin.
The installation process of fuel outlet valve of the present invention: first the one end being provided with distortion limit from valve base assembly is put into by spring seat assembly, spring, footstock in order, Edge Bend will be out of shape again, spring seat assembly and spring is made to be fixed in spring chamber, then plug assembly of draining the oil is put into from the valve base assembly the other end, and the spring convex seat of the plug assembly that makes to drain the oil coordinates with the concave base on spring mounting seat.
Working principle of the present invention:
The blocking working principle of fuel outlet valve of the present invention: when not needing to be drained the oil by fuel outlet valve, rotation is drained the oil plug assembly, bayonet lock is moved along the guiding circular arc groove of mounting groove, when bayonet lock arrives circular trough, plug assembly of draining the oil again presses in valve base assembly, bayonet lock is snapped in circular trough, complete the fixing of drain the oil plug assembly and valve base assembly.Now, the part rotating section is placed in described limit chamber, and described first active section is placed in the first Seal cage, and the first seal section is arranged in bypass cavity, and the second seal section is arranged in the second Seal cage; Now spring is compressed, spring one end limits by footstock, the footstock the other end by by the restriction on distortion limit turned down, the spring the other end by elastic force by spring fitting component passes to plug assembly of draining the oil, due to the inhibition of bayonet lock, the plug assembly that makes to drain the oil is stuck in valve base assembly.
During fuel outlet valve blocking, lubricating oil is entered by the groove on spring chamber, and the 3rd active section drains the oil in groove, external diameter due to the second seal section equals the internal diameter of the second Seal cage, and now the second seal section is placed in the second Seal cage, second seal ring is to the sealing of the second Seal cage, and lubricating oil cannot continue to outflow.
To drain the oil working principle: when needs are drained the oil by fuel outlet valve, fuel outlet valve enters the state of draining the oil, and the present invention preferably can arrange position limit pin and spacing section.Position limit pin is inserted in the spacing hole on valve base assembly, press and rotate plug assembly of draining the oil, bayonet lock is made to screw out mounting groove, plug assembly of draining the oil slowly shifts out a segment distance from valve base assembly, until position limit pin is positioned at spacing section of plug assembly of draining the oil and contacts with the first active section, and the external diameter that the external diameter due to the first active section is greater than spacing section, therefore, when plug assembly of draining the oil move to contact with spacing section time, plug assembly of draining the oil can not move again, thus realize location; The elastic compression that plug assembly right-hand member of now draining the oil is come by spring fitting component passes by spring, left end relies on position limit pin and spacing hole to carry out spacing; Now, due to the movement of plug assembly of draining the oil, the second seal section moves in bypass cavity, internal diameter due to bypass cavity is greater than the external diameter of the second seal section, therefore, when lubricating oil is entered by the groove of draining the oil of the 3rd active section, the second seal section cannot stop the flowing of lubricating oil; Again because have drain oil on the second active section, the external diameter of the second active section equals the external diameter of the second seal section, now the second active section is also placed in bypass cavity, therefore lubricating oil enters bypass cavity and enters in the blocking center flow channels of plug assembly of draining the oil from the drain oil the second active section, and lubricating oil flows out from transform interface.More because now, first active section and the first seal section are placed in the first Seal cage, and the external diameter of the first active section and the first seal section equals the internal diameter of the first Seal cage, and the first seal section skin is seal ring, first seal section seals the first Seal cage, and lubricating oil only can be flowed to drain oil.
The present invention arranges adapter of draining the oil further, enters the bootable clean discharge that the oil drain canal of draining the oil in adapter realizes lubricating oil after lubricating oil flows out from transform interface.
Compared with prior art, the present invention has following beneficial effect:
(1) overall construction design of the present invention is simple, level of integration is high; Drain the oil plug assembly and valve base assembly is all processed by integrated machine.
(2) installing space is little.Fuel outlet valve size smaller and fuel outlet valve major part is inserted in oil tank, only has fraction outside oil tank, so the installing space needed is little, can save very large space by aircraft.
(3) safeguard that space is little, only need to undersized adapter headspace of draining the oil.
(4) require low to maintenance tool, the adapter that only needs will to drain the oil is received on fuel outlet valve, extrudes and rotates, do not need the additional means such as spanner; Easy to maintenance, safeguard that labor intensity is low, discharge only need need operated by personnel when draining the oil beginning and part reset, brings very large facility to lubricating oil discharge.
(5) lubricating oil discharge and lubricating oil sampling do not need disassembling and assembling engine, directly can carry out aboard, bring convenience, be convenient to flight-line service to flight-line service.
(6) lubricating oil sampling directly can not contact with lubricating oil with the whole process operator of discharge, and this has just blocked the harm of high temperature lubricating oil to operator, ensure that the safety of operator, substantially increases Security.
(7) lubricating oil sampling and the discharge of heat engine can be realized, eliminate the time waiting for engine cooling before safeguarding, shorten the engine maintenance time.
(8) adopt fuel outlet valve of the present invention to carry out lubricating oil replacing and sampling process, there is no lubrication leakage, can not produce airframe and motor and pollute.
(9) adopt fuel outlet valve of the present invention to carry out lubricating oil sampling and can not produce pollution to sample, ensure that sample survey real result is reliable.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.
In the accompanying drawings:
Fig. 1 is the structural representation of fuel outlet valve described in the utility model.
Fig. 2 is the structural representation of plug assembly of draining the oil described in the utility model.
Fig. 3 is the structural representation of valve base assembly described in the utility model.
Fig. 4 is the structural representation of spring seat assembly described in the utility model.
Fig. 5 is the structural representation of footstock described in the utility model.
Fig. 6 is the schematic three dimensional views of fuel outlet valve described in the utility model.
Fig. 7 is fuel outlet valve principle schematic described in the utility model.
Fig. 8 is adaptor structure schematic diagram of draining the oil described in the utility model.
Fig. 9 is that fuel outlet valve described in the utility model is drained the oil process schematic.
In figure: 100. drain the oil plug assembly, 200. valve base assemblies, 300. spring seat assembly, 400 springs, 500. footstock, 600. drain the oil adapter, 101. rotatable handle, 102. rotate section, 103. spacing sections, 104. first active sections, 105. drain oil, 106. second seal sections, 107. the 3rd active sections, 108. drain the oil groove, 109. mounting groove, 110. circular trough, 111. curve orientation grooves, 112. first seal sections, 113. second active sections, 114. spring convex seats, 115. transform interface, 201. spacing hole, 202. fixed hole, 203. flange plate, 204. first Seal cages, 205. second Seal cages, 206. spring chamber, 207. bayonet lock, 208. limit chamber, 209. bypass cavity, 210. groove, 211. distortion limits, 301. concave base, 302. spring mounting seat, 601. position limit pin, 602. bridle line, 603. adapter coupling, 604. cushion rubber, 605. transfer tube, 606. switching nuts, 607. drain the oil plug, 701. blocking center flow channels.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As shown in Figure 1, a kind of fuel outlet valve, comprises plug assembly 100 of draining the oil, valve base assembly 200, spring seat assembly 300, spring 400, footstock 500 and position limit pin.
As shown in Figure 2, plug assembly 100 of draining the oil described in comprise set gradually be columniform rotatable handle 101, rotate section 102, spacing section 103, the first active section 104, first seal section 112, second active section 113, second seal section 106, the 3rd active section 107 and spring convex seat 114; Described rotation section 102 has three " J " shape mounting grooves; Described second active section 113 is provided with three drain oils 105; Described 3rd active section 107 has three with the groove 108 of draining the oil of the 3rd active section 107 parallel to an axis; The center of described rotatable handle 101 has transform interface 115; Described plug assembly 100 of draining the oil is provided with blocking center flow channels 701 along axle center, described blocking center flow channels 701 for one end close, the hole of the other end opening, described blocking center flow channels 701, near the one end open of rotatable handle 101, is closed near one end of spring convex seat 114; Described drain oil 105 communicates with blocking center flow channels 701;
Described " J " shape mounting groove comprises circular trough 110 and curve orientation groove 111, circular trough 110 and curve orientation groove 111 communicate, circular trough 110 and curve orientation groove 111 circular sliding slopes, circular trough 110 than the joint of circular trough 110 and curve orientation groove 111 closer to the first active section 104;
The skin of described first seal section 112 is the first seal ring, the skin of described second seal section 106 is the second seal ring, the external diameter of described rotatable handle 101 is greater than the external diameter of described rotation section 102, the external diameter of described first active section 104, first seal section 112, second active section 113, second seal section 106 and the 3rd active section 107 is equal, and the external diameter of described spring convex seat 114 is less than the external diameter of described 3rd active section 107.
As shown in Figure 3, cavity is had in described valve base assembly, described cavity comprise set gradually be columniform limit chamber 208, first Seal cage 204, bypass cavity 209, second Seal cage 205 and spring chamber 206, the end of spring chamber 206 connects distortion limit 211; The inwall of described limit chamber 208 is provided with bayonet lock 207, and the internal diameter of described limit chamber 208 equals the external diameter of described rotation section 102; The internal diameter of described first Seal cage 204 and the second Seal cage 205 equals the external diameter of described first active section 104; The internal diameter of described bypass cavity 209 is greater than the external diameter of described first active section 112; The internal diameter of described spring chamber 206 is greater than the external diameter of the first active section 104; The outer wall of described spring chamber 206 has three grooves 210, and the periphery of described valve base assembly 200 is provided with flange plate 203, and described flange plate 203 is provided with fixed hole 202, for fixing fuel outlet valve; Described distortion limit 211 is sheet metal, and described distortion limit 211 can turn down inside valve base assembly 200.
As shown in Figure 4, described spring seat assembly 300 comprises concave base 301 and spring mounting seat 302, described concave base 301 is embedded in spring mounting seat 302, described concave base 301 has groove, described groove and described spring convex seat 114 suitable, described spring 400 is socketed in spring convex seat 114 outer surface.
Described footstock 500 is installed in described spring chamber 206 near described distortion limit 211, and the maximum outside diameter of footstock 500 equals the internal diameter of described spring chamber 206; Described plug assembly 100 of draining the oil is inserted in valve base assembly 200, and both form rotatable movable connection, and the external diameter of described bayonet lock 207 is less than or equal to the internal diameter of described mounting groove.
The length of described first Seal cage 204 is greater than the length of described first active section 104, and the length sum of described first seal section 104 and the second active section 113 is more than or equal to the length of described bypass cavity 209; When described bayonet lock 207 is placed in described circular trough 110, the first active section 104 is in the first Seal cage 204, and the first seal section 104 and the second active section 113 are in bypass cavity 209, and the second seal section 106 is in the second Seal cage 205; When described plug assembly 100 of draining the oil moves and position limit pin 601 is contacted with the first active section 104, the first seal section 112 is in the first Seal cage 204, and the second seal section 106 is in bypass cavity 209;
Described first active section 104, first seal section 112, second active section 113, second seal section 106, the 3rd active section 107 and spring convex seat 114 and footstock 500 are all installed in described valve base assembly 100, and described rotation section 102 is some or all of to be installed in described valve base assembly 100.
Be provided with spacing section 103 between described rotation section 102 and the first active section 104, the external diameter that the external diameter of described rotation section 102 is greater than described spacing section 103, the external diameter of described spacing section 103 is less than the external diameter of described first active section 104; The outer wall of described limit chamber 208 is provided with spacing hole 201, and described spacing hole 201 is through hole, and the relative bayonet lock 207 of spacing hole 201 is closer to described first Seal cage 204; The external diameter of described position limit pin 601 is less than or equal to the internal diameter of described spacing hole 201.
The outer surface of described rotatable handle 101 is provided with screw thread.
As shown in Figure 8, also comprise adapter 600 of draining the oil, described in adapter 600 of draining the oil be communicated with described transform interface 115.
Described adapter 600 of draining the oil comprises adapter coupling 603, transfer tube 605, switching nut 606, described adapter coupling 603 one end is provided with plug 607 of draining the oil, the other end is managed with switching 605 by switching nut 606 and is connected, described plug 607 of draining the oil is provided with cushion rubber 604, described plug 607 and described transform interface 115 transition fit of draining the oil, the center of described adapter coupling 603, transfer tube 605, switching nut 606 is equipped with the oil drain canal of concentric.
Described adapter 600 of draining the oil is provided with bridle line 602, and one end of described bridle line 602 connects described position limit pin 601.
Overall construction design of the present invention is simple, level of integration is high, installing space is little, safeguard that space is little, only needs to undersized adapter headspace of draining the oil.In addition, the present invention has easy to maintenance, safeguards that labor intensity is low, lubricating oil discharge and lubricating oil sampling do not need disassembling and assembling engine, can directly carry out aboard, lubricating oil sampling directly can not contact with lubricating oil with the whole process operator of discharge, the advantage that Security is high.Again, the present invention can realize lubricating oil sampling and the discharge of heat engine, eliminates the time waiting for engine cooling before safeguarding, shorten the engine maintenance time, change and sampling process at lubricating oil, there is no lubrication leakage, can not produce airframe and motor and pollute.
Obviously, above-described embodiment is only for technological scheme example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (10)
1. a fuel outlet valve, is characterized in that: comprise plug assembly of draining the oil, valve base assembly, spring seat assembly, spring and footstock;
Described plug assembly of draining the oil comprise set gradually be columniform rotatable handle, rotate section, the first active section, the first seal section, the second active section, the second seal section, the 3rd active section and spring convex seat; Described rotation section at least has " J " shape mounting groove; Described second active section is at least provided with a drain oil; Described 3rd active section at least has one with the groove of draining the oil of the 3rd active section parallel to an axis; The center of described rotatable handle has transform interface; Described plug assembly of draining the oil is provided with blocking center flow channels along axle center, and described blocking center flow channels is that one end is closed, the hole of the other end opening, and described blocking center flow channels, near the one end open of rotatable handle, is closed near one end of spring convex seat; Described drain oil communicates with blocking center flow channels;
Described " J " shape mounting groove comprises circular trough and curve orientation groove, and circular trough and curve orientation groove communicate, circular trough and curve orientation groove circular sliding slopes, circular trough than the joint of circular trough and curve orientation groove closer to the first active section;
The skin of described first seal section is the first seal ring, the skin of described second seal section is the second seal ring, the external diameter of described rotatable handle is greater than the external diameter of described rotation section, the external diameter of described first active section, the first seal section, the second active section, the second seal section and the 3rd active section is equal, and the external diameter of described spring convex seat is less than the external diameter of described 3rd active section;
Have cavity in described valve base assembly, described cavity comprise set gradually be columniform limit chamber, the first Seal cage, bypass cavity, the second Seal cage and spring chamber, the end of spring chamber connects distortion limit; The inwall of described limit chamber is provided with bayonet lock, and the internal diameter of described limit chamber equals the external diameter of described rotation section; The internal diameter of described first Seal cage and the second Seal cage equals the external diameter of described first active section; The internal diameter of described bypass cavity is greater than the external diameter of described first active section; The internal diameter of described spring chamber is greater than the external diameter of the first active section; The outer wall of described spring chamber at least has a groove, and the periphery of described valve base assembly is provided with flange plate, and described flange plate is provided with fixed hole; Described distortion limit is thin slice, and described distortion limit can turn down inside valve base assembly;
Described spring seat assembly comprises concave base and spring mounting seat, and described concave base is embedded in spring mounting seat, and described concave base has groove, described groove and described spring convex seat suitable, described spring housing is connected on spring convex seat outer surface;
Described footstock is installed in described spring chamber near described distortion limit, and the maximum outside diameter of footstock equals the internal diameter of described spring chamber; Described plug assembly of draining the oil is inserted in valve base assembly, and both form rotatable movable connection, and the external diameter of described bayonet lock is less than or equal to the internal diameter of described mounting groove;
The length of described first Seal cage is greater than the length of described first active section, and the length sum of described first seal section and the second active section is more than or equal to the length of described bypass cavity; When described bayonet lock is placed in described circular trough, the first active section is in the first Seal cage, and the first seal section and the second active section are in bypass cavity, and the second seal section is in the second Seal cage; Described plug assembly of draining the oil moves and the first seal section can be made to be in the first Seal cage, and the second seal section is in bypass cavity;
Described first active section, the first seal section, the second active section, the second seal section, the 3rd active section and spring convex seat and footstock are all installed in described valve base assembly, and described rotation section is some or all of to be installed in described valve base assembly.
2. fuel outlet valve according to claim 1, it is characterized in that, the outer surface of described rotatable handle is provided with screw thread.
3. fuel outlet valve according to claim 1, it is characterized in that, also comprise position limit pin, between described rotation section and the first active section, be provided with spacing section, the external diameter that the external diameter of described rotation section is greater than described spacing section, the external diameter of described spacing section is less than the external diameter of described first active section; The outer wall of described limit chamber is provided with spacing hole, and described spacing hole is through hole, spacing hole relative to bayonet lock closer to described first Seal cage; The external diameter of described position limit pin is less than or equal to the internal diameter of described spacing hole; When described plug assembly of draining the oil moves and position limit pin is contacted with the first active section, the first seal section is in the first Seal cage, and the second seal section is in bypass cavity.
4. fuel outlet valve according to claim 1, it is characterized in that, described rotation section is evenly provided with three mounting grooves, and described three mounting grooves are on same circumferential position.
5. fuel outlet valve according to claim 1, it is characterized in that, described second active section is evenly provided with three drain oils, described three drain oils are on same circumferential position.
6. fuel outlet valve according to claim 1, is characterized in that, described 3rd active section is evenly provided with three drain the oil grooves isometric with the 3rd active section.
7. fuel outlet valve according to claim 1, it is characterized in that, the outer wall of described spring chamber evenly has three grooves.
8. fuel outlet valve according to claim 1, is characterized in that, also comprise adapter of draining the oil, described in adapter of draining the oil be communicated with described transform interface.
9. fuel outlet valve according to claim 8, it is characterized in that, described adapter of draining the oil comprises adapter coupling, transfer tube, switching nut, described adapter coupling one end is provided with plug of draining the oil, the other end is connected with transfer tube by switching nut, described plug of draining the oil is provided with cushion rubber, described in drain the oil plug and described transform interface transition fit, the center of described adapter coupling, transfer tube, switching nut is equipped with the oil drain canal of concentric.
10. fuel outlet valve according to claim 8, is characterized in that, described in adapter of draining the oil be provided with bridle line, one end of described bridle line connects described position limit pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610022916.6A CN105465588B (en) | 2016-01-14 | 2016-01-14 | A kind of fuel outlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610022916.6A CN105465588B (en) | 2016-01-14 | 2016-01-14 | A kind of fuel outlet valve |
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| Publication Number | Publication Date |
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| CN105465588A true CN105465588A (en) | 2016-04-06 |
| CN105465588B CN105465588B (en) | 2017-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610022916.6A Active CN105465588B (en) | 2016-01-14 | 2016-01-14 | A kind of fuel outlet valve |
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| CN (1) | CN105465588B (en) |
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| CN105952508A (en) * | 2016-06-30 | 2016-09-21 | 广西玉柴机器股份有限公司 | Oil drain plug for test |
| CN106321229A (en) * | 2016-11-16 | 2017-01-11 | 北京汽车研究总院有限公司 | Simple integrated oil drain valve structure for plastic air chamber intercooler |
| CN112112706A (en) * | 2020-09-29 | 2020-12-22 | 中国航发动力股份有限公司 | Oil drainage device and method for sealing valve |
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| CN112112706A (en) * | 2020-09-29 | 2020-12-22 | 中国航发动力股份有限公司 | Oil drainage device and method for sealing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105465588B (en) | 2017-06-23 |
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